What is the reason for the loud banging noise when the new Santana passes over speed bumps?

[VonKeegan]

The reason for the loud banging noise when the new Santana passes over speed bumps is abnormal shock absorber performance. Causes of abnormal shock absorber performance: First, check if the shock absorber is leaking oil. A faulty shock absorber will feel unusually hard when compressed. This is a symptom of advanced shock absorber oil leakage. How to inspect the shock absorber: In dry conditions (when it hasn't rained or the car hasn't been washed), directly examine the shock absorber housing or dust cover. During low-speed driving, when the wheels pass over road bumps or experience minor vibrations, there will be a hollow knocking sound. The abnormal noise from the shock absorber is distinct from other chassis noises—it sounds very dull. If it's the front shock absorber, there will also be noticeable vibration felt on the steering wheel. Press down on the upper part of each wheel's suspension component, such as pressing on the front and rear fenders.